You’ll need An empty jar or ziplock back to store the salt in A large ziplock bag to shake and combine the ingredients Baking Soda Epsom Salt (optional) Rock Sea Salt Fine Sea Salt An essential oil of your choice an herb of your choice (optional) food coloring of your choice (optional) You want to add equal amounts of rock salt and epsom salt and about half of that amount of the baking soda and fine salt. Mix the salts and baking soda together until everything is combined really well and add in a pinch of the herb you have chosen. Too much will leave the tub a mess so ONLY A PINCH. The herbs are optional. Then add in a few drops of food coloring. Start out with only 2 or 3 drops and you can add in as needed. Mix really well with a wooden spoon. The color will stain the spoon so make sure you are stirring with something you don’t mind turning colors. When you have the salts the desired color add in the oil of your choice. Again only add in a small amount at a time until you get the desired fragrance. Then mix everything together, mixing in a large ziplock back and shaking works really well and is faster than just stirring alone. Then gently pour into your jar or bag and label. All ready to use! Enjoy.